How do you simplify $(2x^2 - 4x - 5) + (10x^2 + 3x)$ ?

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Answer 1 · 2015-06-15T10:45:01

Remove the parentheses, gather like terms, and simplify to get $12x^2-x-5$ .

We can remove the parentheses since the terms inside are already simplified.

$2x^2-4x-5+10x^2+3x$

Gather like terms and simplify.

$2x^2+10x^2-4x+3x-5$ =

$12x^2-x-5$

How do you simplify (2x^2 - 4x - 5) + (10x^2 + 3x)(2x^2 - 4x - 5) + (10x^2 + 3x)?